Polarization-isolated electrical modulation of an etched long-period fiber grating with an outer liquid-crystal cladding
- 1 April 2003
- journal article
- Published by SPIE-Intl Soc Optical Eng in Optical Engineering
- Vol. 42 (4) , 964-968
Abstract
An etched long-period fiber grating with an outer liquid-crystal cladding capable of polarization-isolated electrical modulation, is described. A 5-dB transmission-dip modulation with 4-dB polarization isolation can be obtained at 225 V. The reduction in fiber diameter by a chemical etching process leads to an improvement in the long-range ordering of liquid-crystal molecules and a reduction in the controlling voltage. In addition, the experimental results are supported by numerical simulation. © 2003 Society of Photo-Optical Instrumentation Engineers.Keywords
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